Digital Stethoscope Dual-Mic Dictation System Captures Physiological Sounds
Summary
USPTO published patent application US20260100256A1 for a digital stethoscope system with dual microphones — one capturing physiological sounds and another capturing voice dictation. The system uses noise cancellation to isolate heart and lung sounds from ambient noise. Inventors include Subramaniam Venkatraman, Michael Childs, and others. Medical device manufacturers and healthcare technology developers should review for potential licensing implications.
What changed
USPTO published patent application US20260100256A1 for a stethoscope system featuring dual microphones — a first microphone captures physiological sounds (heart, lung) while a second microphone captures ambient sounds and voice dictation. The system includes noise cancellation processing that uses the second microphone signal to filter noise from the physiological signal during stethoscope mode, and switches to voice dictation capture during dictation mode. The patent covers methods for seamless mode switching and signal processing.\n\nMedical device manufacturers developing electronic stethoscopes or healthcare audio capture devices should review this patent for potential licensing implications or freedom-to-operate concerns. Clinical investigators and healthcare providers using digital stethoscope systems should monitor for future products implementing these dual-mode capture and noise cancellation techniques.
What to do next
- Monitor patent databases for related stethoscope and medical audio patents
- Review for potential freedom-to-operate implications if developing similar devices
- Consider licensing opportunities if developing dual-microphone medical audio products
Archived snapshot
Apr 9, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
SYSTEMS AND METHODS FOR DICTATION WITH A DIGITAL STETHOSCOPE
Application US20260100256A1 Kind: A1 Apr 09, 2026
Inventors
Subramaniam Venkatraman, Michael Childs, Dan Freschl, Theo Brower, Shanmugam Muruga Palaniappan, Connor Landgraf
Abstract
The present description relates to methods and systems for a medical dictation. In one example, a stethoscope includes a first microphone positioned to capture physiological sounds of a patient, a second microphone positioned to capture ambient sounds, one or more processors, and memory storing instructions executable by the one or more processors to: during a stethoscope mode, obtain a first signal from the first microphone and a second signal from the second microphone, process the first signal to capture a physiological sound signal, including performing noise cancellation on the first signal based on the second signal, and transmit the physiological sound signal to an external computing device and/or a speaker of the stethoscope; and during a dictation mode, obtain the second signal from the second microphone, process the second signal to capture a voice signal, and transmit the voice signal to the external computing device.
CPC Classifications
G16H 10/60 A61B 5/0006 A61B 5/332 A61B 7/04 A61B 2562/06
Filing Date
2025-07-08
Application No.
19263373
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